/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package cn.zch.test.netty.telnet;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.DelimiterBasedFrameDecoder;
import io.netty.handler.codec.Delimiters;
import io.netty.handler.codec.LineBasedFrameDecoder;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.handler.ssl.SslContext;
import io.netty.util.CharsetUtil;
import sun.nio.cs.ext.GB18030;
/**
 * Creates a newly configured {@link ChannelPipeline} for a new channel.
 * @author zchcpywin10
 */
public class TelnetClientInitializer extends ChannelInitializer<SocketChannel> {
  private static final StringDecoder DECODER = new StringDecoder(CharsetUtil.UTF_8);
  private static final StringEncoder ENCODER = new StringEncoder(CharsetUtil.UTF_8);
  private static final TelnetClientHandler CLIENT_HANDLER = new TelnetClientHandler();
  private final SslContext sslCtx;
  public TelnetClientInitializer(SslContext sslCtx) {
    this.sslCtx = sslCtx;
  }
  @Override
  public void initChannel(SocketChannel ch) {
    ChannelPipeline pipeline = ch.pipeline();
    if (sslCtx != null) {
      pipeline.addLast(sslCtx.newHandler(ch.alloc(), TelnetClient.HOST, TelnetClient.PORT));
    }
    // Add the text line codec combination first,
    // pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()))
    pipeline.addLast(DECODER);
    pipeline.addLast(ENCODER);
    // LineBasedFrameDecoder 按行分割消息
    // pipeline.addLast(new LineBasedFrameDecoder(2));
    // 处理逻辑
    pipeline.addLast(CLIENT_HANDLER);
  }
}
